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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1723165Generated: November 2, 2026

Hydrochloric Acid → HCID 20026743, compound

https://huagongshe.com/reaction/1723165

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHydrogen SulfideHCID 402—
Reactant4-(4-Chlorophenyl)-4-oxobutanenitrileHCID 587352—
SolventMethanolHCID 887—
ProductHCID 20026743HCID 20026743—

Reaction Steps

HCl and H2S gas are bubbled through a solution of the above nitrile (7.70 g, 40.0 mmol) in 100 ml of methanol at 10°-20° for 7 hours. The suspension is then stirred at RT overnight. It is dried, filtered, washed with ether and dried with suction under an N2 atmosphere to give 2-amino-5-(4-chlorophenyl)thiophene hydrochloric acid salt, a slightly purplish powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04859699
Source datasetuspto-grants-1989_08
ORD IDord-635ba454883b498fbe2ee6a32cb8e999
Source noteuspto-grants-1989_08